Pourquoi est-ce pas LINQ to XML Query travail (Amazon S3)

Question

Compte tenu de cette XML ...

<ListBucketResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/"> 
<Name>public.rpmware.com</Name> 
<Prefix></Prefix> 
<Marker></Marker> 
<MaxKeys>1000</MaxKeys> 
<IsTruncated>false</IsTruncated> 
<Contents> 
    <Key>0.dir</Key> 
    <LastModified>2008-06-25T16:09:49.000Z</LastModified> 
    <ETag>"0ba2a466f9dfe225d7ae85277a99a976"</ETag> 
    <Size>16</Size> 
    <Owner> 
    <ID>1234</ID> 
    <DisplayName>kyle</DisplayName> 
    </Owner> 
    <StorageClass>STANDARD</StorageClass> 
</Contents> 
<!-- repeat similar 100x -->  
</ListBucketResult> 

Et ce code C#:

XDocument doc = XDocument.Load(xmlReader); 
var contents = from content in doc.Descendants("Contents") select new {Key = content.Element("Key").Value, ETag = content.Element("ETag").Value}; 

     foreach (var content in contents) 
     { 
      Console.WriteLine(content.Key); 
      Console.WriteLine(content.ETag); 
     } 

Je sais que le xdoc est pas vide et contient le bon XML.

J'ai également implémenté du code ScottGu (http://weblogs.asp.net/scottgu/archive/2007/08/07/using-linq-to-xml-and-how-to-build-a-custom-rss-feed-reader-with-it.aspx) comme vérification de sécurité et cela fonctionne exactement comme prévu.

XDocument doc2 = XDocument.Load(@"http://weblogs.asp.net/scottgu/rss.aspx"); 
     var posts = from items in doc2.Descendants("item") select new { Title = items.Element("title").Value }; 
     foreach (var post in posts) 
     { 
      Console.WriteLine(post.Title); 
     } 

Answer 1

Xml: namespaces

XNamespace ns = "http://s3.amazonaws.com/doc/2006-03-01/"; 
    var contents = from content in doc.Descendants(ns + "Contents") 
        select new { Key = content.Element(ns + "Key").Value, 
         ETag = content.Element(ns + "ETag").Value };